Sifter vs Read Copilot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sifter
This app provides a smart spam filter for iOS devices, allowing users to create personalized rules to block unwanted text messages. It prioritizes user privacy with local processing and offers advanced filtering options like regular expressions.
- Customizable filtering rules
- Blacklist and whitelist contacts
- Regex filtering for advanced control
- Local data processing for privacy
- Blocks unwanted SMS and MMS
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Reclaim your inbox with Sifter, the intelligent and private SMS filter for iOS. Powered by a robust Message Filter extension and secure on-device processing, Sifter gives you absolute control over your messaging experience without compromising your privacy. FOCUS ON WHAT MATTERS Sifter empowers you to design personalized filtering rules to block unwanted texts while keeping your inbox clean and focused. With a refined interface built for speed and clarity, managing your rules is seamless and efficient. KEY FEATURES - RULE-BASED CATEGORIZATION: Easily filter and organize messages into Transactions and Promotions using your own custom rules. - GRANULAR FILTERING: Tailor your protection with specific rules. From simple keywords to sophisticated patterns, you decide exactly what reaches your notification center. - CONTACT MANAGEMENT: Protect your peace of mind by whitelisting trusted contacts or blacklisting specific numbers and entire contact lists. - ADVANCED REGEX ENGINE: Leverage the power of Regular Expressions to create intricate, high-precision filtering rules for complex messaging patterns. - PRIVACY-FIRST ARCHITECTURE: Sifter operates entirely locally on your device. Your messages never leave your phone, ensuring your personal data remains 100% private. SUPPORTED RULE TYPES - Whitelist and Blacklist Users (Contacts/Numbers) - Whitelist and Blacklist Keywords - Transactional and Promotional Categorization - Regex-powered versions of all the above Sifter is your personal gatekeeper. Whether you are blocking marketing noise or organizing important transactional alerts, Sifter provides a private and powerful solution to keep your messaging focused on what truly matters. Download Sifter and take full control over your inbox.
Read Copilot
This AI-powered app enhances your reading experience by summarizing articles from your subscribed RSS feeds. It helps you stay informed by condensing content, translating text, and offering insights, allowing you to consume information more efficiently.
- AI-powered article summarization
- RSS feed subscription management
- Article translation
- Customizable font size and style
- Save articles for later
- Content discussion enablement
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Read Copilot is your AI reading companion for ePubs, PDFs, RSS feeds, and saved articles. Ask the AI to summarize a chapter, translate a passage, explain a concept, or have a focused conversation with the content — without leaving the app. What you can do: - Read ePub, PDF, and RSS feeds in one place - Summarize articles and chapters instantly - Translate and explain difficult sections - Chat with your reading and get contextual answers - Save articles to read later, even offline Stop sifting through long articles and dense books. Let Read Copilot help you read faster, understand more, and remember what matters. Download now and make your reading smarter. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Read Copilot at 100% against Sifter's 29%. Read Copilot also leads on price (Free vs $2.99) and rating (5.0 vs 4.1). Sifter's advantage is in-app purchases (none vs 2) and ratings volume (108 vs 3). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Read Copilot is free to download; Sifter costs $2.99 up front. Read Copilot sells 2 in-app purchases, starting at $2.99 per month. Sifter asks for nothing beyond the download.
Read Copilot holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Sifter has 108 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 29% of Sifter's written reviews are positive against 100% of Read Copilot's.
Sifter ships an update every 3 months, Read Copilot weekly. The most recent releases landed on September 17, 2026 and August 31, 2026 respectively.
| Parameter | Sifter | Read Copilot |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.1 (108 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 28.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 108 — better | 3 |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #172 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 10 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | 磊 汪 | 晓飞 徐 |
Customer experience
Sifter
Read Copilot
In-app purchases
Sifter
No in-app purchases
Read Copilot
- Monthly1 Month trial$2.991 Month
- Annual1 Month trial$29.991 Year









